Omron A2W-R**-WC1 Series, User Manual

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3 Survey of the Operating Environment and System Design
3 - 4 Wireless Pushbutton Switch User’s Manual (A265)
• Floor and ceiling metal plates and piping
• Metal shielding (iron door, metallic shutter, etc.)
• Thermal insulation (cover with aluminum vapor deposition)
• People (moisture)
• Reinforced concrete wall
• Elevator
• Stainless steel cupboard and refrigerator in kitchen
• Steel shelves, lockers, etc.
• Power cable
• Window with iron wire
Do not install in the following place.
• Places exposed to direct sunlight.
• Where the humidity is very high.
• Near devices that transmit and receive radio waves such as television, radio, transceiver.
• Places close to mobile phone base station.
• Near the thing that sparks such as motor, drill, welder etc.
• Near the strong magnet.
• Near the fluorescent light.
• It is a place surrounded by metal belonging to the genus, concrete.
Additional Information
• Metal reflects radio waves. Therefore, if there is a metal object around the antenna, the radio
waves in a specific direction weaken.
• Water absorbs radio waves. Therefore, if there is water in the communications path, the radio
wave attenuates and weakens.
Major Radio Wave Obstacles in the Buildings